What Is a Lab Grown Diamond?

If you’ve been researching engagement rings or fine jewellery, you’ve likely come across the term “lab grown diamond.” But what does it actually mean? Are these stones real? And how do they compare to the traditional mined diamonds we’ve known for generations?

In this comprehensive guide, we’ll explain what lab grown diamonds are, how they’re made, and why they are becoming the preferred choice for modern buyers around the world.

Definition: What Is a Lab Grown Diamond?

A lab grown diamond is a real diamond that is created in a laboratory setting rather than formed underground over millions of years. It has the same chemical composition (carbon), the same crystal structure (cubic), and the same visual brilliance as a mined diamond.

In fact, the only difference between a lab diamond and a natural diamond is its origin.

Lab grown diamonds are:

• Physically identical

• Optically identical

• Chemically identical

• Graded by GIA or IGI just like mined diamonds

These are not diamond simulants like cubic zirconia or moissanite. They’re real diamonds, capable of lasting a lifetime.

How Are Lab Grown Diamonds Made?

There are two primary methods for growing diamonds in a lab:

🔬 1. HPHT (High Pressure High Temperature)

This method mimics the extreme heat and pressure found deep in the Earth’s mantle.

• A diamond seed is placed in pure carbon.

• Heat and pressure are applied until the carbon crystallises around the seed.

• Over 1–2 weeks, a diamond grows and is then cut and polished.

⚛️ 2. CVD (Chemical Vapour Deposition)

CVD is a newer method that allows for greater control of clarity and colour.

• A diamond seed is placed in a vacuum chamber.

• Carbon-rich gas is introduced and broken down into atoms.

• These atoms form layers of carbon on the seed.

• The diamond grows over several weeks.

Both methods result in genuine, gem-quality diamonds suitable for high-end fine jewellery.

Are Lab Grown Diamonds Real Diamonds?

Yes. According to the Gemological Institute of America (GIA), lab grown diamonds are real diamonds. They are tested, graded, and certified using the same standards as mined diamonds, including:

• Carat

• Cut

• Clarity

• Colour

Each stone comes with a grading report from GIA, IGI, or another respected lab, and often features a laser inscription for verification.

How Do Lab Diamonds Compare to Mined Diamonds?

💎 Want to explore a real example? View the
👉 Elysian Radiant Solitaire Ring—available with a GIA- or IGI-certified lab diamond.

Common Misconceptions

❌ “Lab diamonds are fake”

✅ They are real diamonds. Simulants like cubic zirconia or moissanite are not diamonds.

❌ “They’re lower quality”

✅ Lab diamonds are often higher in clarity and colour due to controlled growth.

❌ “They don’t last as long”

✅ They’re just as hard and durable as mined diamonds, with a 10/10 on the Mohs scale.

Why Are Lab Grown Diamonds Becoming So Popular?

• Ethical sourcing: No mining, no conflict zones

• Eco-conscious: Reduced environmental impact

• Better value: Larger or cleaner stones at more accessible prices

• Technological innovation: Cutting-edge craftsmanship

• Customisation: Ideal for bespoke jewellery with specific size, shape, and colour

At Diamond Lab, we’ve seen a sharp rise in clients choosing lab grown diamonds—especially among younger couples who value sustainability, transparency, and modern design.

Should You Choose a Lab Diamond?

If you're looking for a diamond that offers the same brilliance, durability, and authenticity—but with lower environmental impact, ethical clarity, and better value—lab grown diamonds are a compelling option.

They are not a compromise—they’re a smart, conscious choice.

Final Thoughts: A New Era in Fine Jewellery

Lab grown diamonds are redefining what it means to invest in a luxury piece. They offer all the beauty of tradition, with the innovation of science and the ethics of sustainability.

For engagements, anniversaries, milestones, or heirlooms—lab grown diamonds give you the real thing, in every sense of the word.

Want to Learn More or See a Lab Diamond in Person?

We invite you to visit our Perth showroom or book a virtual consultation. Our expert team will walk you through the diamond selection process and help you create something truly meaningful.

📍 Contact Diamond Lab